Device for converting hot and dry steam into cool and wet vapor.



No. 640,547. Patented 1an. 2, |900. R. DUFFIE.

DMHCE FOR CONVERTING HOT AND DRY STEAM INTO COOL AND WET VAPOR.

(Application fled July 12, 1899.) (No Windel.)

RGBERT DUFFlE, DF NET BEDFORD, MASSACHUSETTS, ASSIGNOR OF ONE- l'lrllilr TO DENNIS IIAWORTH, OF SAME PLACE.

DEVICF` FDR CONVERTING HOT AND DRY STEAM INTO COOL WET VAPOR.

SPECIFICATKDN forming part of Letters Patent No. 640,547, dated January 2, 1900.

Application filed July l2, 1899. Serial No. 723,640. (No inoclelJ To @ZZ 1l/7mm it 'Jn/(ty concern:

Be it known that l, ROBERT Donnie, a citizen of the United States, residing at New Bedford, in the county of Bristol and State 5 of Massachusetts, have in vented a certain new and useful Device for Converting Het and Dry Steam into `Cool and lVet Vapor, of which the following is a specification.

The object of my invention is to provide a Io device by means `of which the proper comlition of humidity in the atmosphere in rooms devoted to the spinning and weaving of cotton maybe easily and cheaply maintained.

To this end my invention consists in an i5 orifice of peculiar character, through which,

when steam is allowed to escape under pressure, the escaping steam is changed from hot and dry to cool and wet.

The accompanying drawings illustrate my zo invention, in whiclb- Figure l is a side elevation of a device provided with my invention. Fig. 2 is a view in longitudinal section of Fig. l, and Fig. 3 is a view of a portion of the device shown in Fig. l

a5 in longitudinal section across one of the oriices.

Similar letters refer to similar parts in the several views.

The letter c represents a portion of a steamgo pipe, on the end of which is secured the tube l), provided with the collar d and having its outer end stopped with the plug 7L.

c is a sleeve adapted to slide over the tube l) and is adjustable on said tube by means of 35 the screw e, seated in the collar cl and working through the stud g, secured to said sleeve. Through the side of the tube b are out the narrow slits or orifices h', having sharp edges, and through the sleeve c are cut correspond ao ing orices c to coincide with the orifices b', which orifices may be entirely closed or opened to their fullest extent by manipulating the screw e. The orifices in the tube l) and the sleeve c may have sharp and straight edges a5 or sharp and serrated edges, the effect on the steam underpressure flowing through a nar-a row opening having sharp edges being to cause it to become at once cool and Wet and to diffuse itself throughout the surrounding atmosphere and become incorporated there- With6 lt is obvious that the device in which the orifices for the escape of steam are situated and the mechanism by means of which the extent of their area is governed might be varied indefinitely; but these do not constitute the invention7 which, as before stated7 is au Orifice of peculiar character, through which, when steam is caused to escape, said steam is changed in character from hot and dry to cool and wet.

Having thus described my invention, what l claim, and desire to secure by Letters Patent, is

l. ln a device for converting hot and dry steam into cool and damp vapor, the steampipe d, the pipe l) connected thereto, and pro vided with a collar CZ upon its upper end, and the plug 7L for closing the end of the pipe, combined with a sleeve c provided with a stud g at its upper end and a set-screw e for adjusting the sleeve upon the pipe l); the pipes b and c being provided with narrow slits through their sides, and the slits through the pipe b having serrated edges, substantially as shown and described.

2. In a device for diffusing steam in the form of dew, a pipe closed at one end, and open at the other for the admission of steam, and which is provided with slits in its side, combined with an endwise-movable concentric pipe provided with corresponding slits through its sides, and means whereby the outer pipe can be moved endwise for the purpose of adjusting the size of the slits, substantially as shown.

ROBERT DUFFIE. "Witnesses:

EDWARD P. HAsKnLL, FRANKLIN L. HATHAWAY. 

